I have had a number of requests for my paper concerning using YACC in a
backtracking parser. I plan to update the paper (to include some more
recent changes) over the next couple of days and make it available by
anonymous ftp. I appreciate everyone's interest in this. Please do *not*
request a copy of the paper at this time unless you do *not* have ftp
access. (For those who don't, I'll e-mail copies of the paper.)